N,N'-Diphenyl-p-phenylenediamine from Germany
N,N'-Diphenyl-p-phenylenediamine (DPPD) is a substituted aromatic polyamine used as an antioxidant in rubber. Classified in HTS 2921.59.80 as a derivative where phenyl substitutions maintain polyamine character under Chapter 29 amine-function rules.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Molecular weight and substitution pattern confirmation via MS/NMR
• Rubber accelerator end-use docs; avoid Chapter 38.12 classification
• Melting point specs (144-148°C) verify identity